Hydrometric tester



July 29, 1941.

E. A. STROMBERG HYDROMETRIC TESTER Filed Sept. 14, 1939' 1N VENTOR.

Lib 077166659,

ATTORNEY.

Patented July 29, 1941 UNITED STATES PATENT OFFICE HYDROMETRIC TESTER Emil A. Stromberg, Chicago, 111. Application September 14, 1939, Serial No. 294,793

I (Cl. 265-46) 14 Claims.

The present invention relates to testers of the hydrometric type and particularly those having thermometric means in connection therewith, the invention pertaining to the latter.

An object of the invention is the provision in a tester having the usual jar, suction tip, suction bulb, and hydrometric float, a novel thermometric device which comprises a plug of resilient material, fitting in the jar with a sealing contact and having a passage for the liquid to pass from one side to the other of the plug, together with a chamber in the plug connected to the passage and in which the bulb of the thermometer carried by the plug is located to register the temperature of the liquid passing into and through such chamber. Incidently, by locating the thermometer bulb within the resilient plug it is protected from all danger of damage.

The invention also comprehends novel means for the protection of the bend of the thermometer which is located without the plug although the legs of the U-shaped thermometer are within the plug.

Other objects, advantages, capabilities, features, and the like are comprehended by the invention as will later appear and as are inherently possessed by the invention.

Referring to the drawing:

Fig. 1 is a view in elevation of a tester in which the invention is embodied;

Fig. 2 is a fragmentary sectional view of the device, on an enlarged scale, showing the invention applied to the tester;

Figs. 3, 4, and 5 are transverse sectional views taken in planes represented by lines 3-3, 44, I

and 5-5 in Fig.2 of the drawing;

Fig. 6 is a view similar to that shown in Fig. 2 but of an alternative form;

Fig. '7 is a transverse sectional view taken in a plane represented by line 1-1 of Fig. 6

Fig. 8 is a view similar to that shown in Fig. 2 but of a further alternative form; and,

Fig. 9 is a transverse sectional View taken in a plane represented by line 9-9 in Fig. 8 of the drawing.

Referring more in detail to the drawing, the

embodiments selected to illustrate the invention are shown in connection with a hydrometric type of tester comprising a jar I which may be of hollow glass or the like, a suction tip 2 suitably connected to the lower end of the jar and having a suction tube 3, a suction bulb 4 connected to the upper end of the jar, and a hydrometric float 5 within the jar.

, Within the jar as at th lower portion thereof,-

jar l.

or at any intermediate portion, is located a thermometric device 6 constituting the, novel invention herein disclosed. This device comprises an elongated plug 1 which may be of rubber, or other resilient or like material. This plug has end portions 8 and 9 of such size as to fit with a liquid sealin contact with the inner surface of the jar, and an intermediate body portion of smaller size so as to provide a circumambient channel I0 which forms a closed chamber between the end portions 8- and 9 and within the 'jar wall which encompasses the plug, wherein is located a data bearing interpolation chart II. This chart is preferably of such material, such as Celluloid or the'like, which will retain a curved shapeand also clasp the body portion of the plug, as shown.

Through the plug extends a passage l2 for establishing communication between the lower. and upper chambers l3 and M of the jar at both sides or ends of the plug. Also within the plug is provided a chamber l5 which may have spaced passages I6 and I? connected to the passage l2 so that whenv the liquid is drawn up in the passage I2 it will also pass or bypass into and through the chamber I5 by way of passages 16 and H, or which may have a passage l5a with or without the passage ll, the liquid passing through the passage [50. when the liquid is drawn up inthe The plug carries a thermometer which, is preferably of U-shape and comprises a graduated long leg lfl'extending through an aperture [5 provided-in the end portion 9 of the plug and located in a groove '20 provided in the side of the body portion of theplug so that the scale bearing .iace 2| of the thermometer will be disposed in the chamber 10 and between the edges of the curved chart II, a short bulb leg 22 extending through an aperture 23 and having at its end a bulb 24 located within the chamber l5, and a bend 25 located outside the end portion 9. The end portion 9 may have a flange portion 26 as shown.

Because the plug 1 is composed of resilient material, it is facile to insert the thermometer in place as by pushing the leg I8 through the hole l9 and the bulb 24 and leg 22 through the hole 23,

the bend 25 remaining outside, and the resilient material around the holes I9 and 23 being in resilient sealing contact'with the legs l3 and 22.

In Fig. 2 the plug is shown in place with the thermometer connected at the lower end thereof,

but in Figs. 6 and 8 the plug is shown in reverse position with the thermometer connected at the upper end thereof. In that case the float 5, if no means were provided to prevent it, would contact 7 the bend 25 and either the bend or the float or both might be damaged. To avoid that the flange 26 may have upwardly and inwardly extending projections 27 of the same material as the plug or even of stifier material to act as a guard to ward ofi any contact with the bend 25 by the base of the float 5, as shown in Figs. 6 and '7. On the other hand, as shown in Figs. 8 and 9, the end portion 9 may have an extension 28, the upper end of which is well above the bend 25 and has an elongated recess 29 in which the bend 25 is located. The bottom of the float may only contact the top of the extension 28 and not contact the bend 25.

In use, after the suction bulb 4 has been squeezed and then permitted to expand, the

said plug, said plug having a circumambient channel to provide a sealed space encompassing said plug and within the surrounding wall of the jar, and a data bearing interpolation chart in said channel, said thermometer having its graduated portion in said channel adjacent said chart.

3. In a tester of the type disclosed which comprises a jar with a suction tip at an end thereof and a suction-bulb at the other end thereof, and a hydrometric float in the jar; a thermometric device comprising a plug fitting within the jar with a liquid seal contact and having a passage extending therethrough for establishing communication between the chambers provided in i "the jar, at both sides of the plug, a chamber proliquid to be tested is drawn up by way of the U tube 3 and tip 2 into the chamber l3 and thence by way of the passage I2 into the float chamber M. The specific gravity of the liquid will be indicated on the stem of the float 5. At the same time the liquid will also flow through the-chamber 'i5'by' way of passages l6 and I! or by-way of passages It and [5a, or'both l6 and I1 and .th'epassage l5a, as the case may be, so that the thermometer bulb 25 contacted by the liquid will transmit to the temperature responsive substance of the thermometer heat which will be indicated as temperature on the scale 2|. The temperature and specific gravity indication may "then be interpolated by the data on the chart I l While I have,herein described and' upon the drawing shown afew illustrated embodiments of the invention, it is to be understood that the invention is not limited thereto but comprehends other constructions, details, arrangements of parts, features, and the like, without departing from the spirit of the invention.

Having thus disclosed'the invention,

1. In a tester of the type disclosed which com prises a jar with a suction tip at an end thereof anda suction bulb at'the other end thereof, and a hydrometric float inthe jar; a thermometric device comprising a plug fitting within the jar with a liquid seal contact and having a passage extending therethrough for establishing communication between the chambers provided in the jar at both sides of the plug; a chamber provided in said plug and having spaced passages connected to said communication passage in said plug, and a thermometer carried by said plug and having its bulb located in 'said chamber in said'plug.

2. In a tester of the type disclosed which comprises ajar with a suction tip at an end thereof and a suction bulb at the other end thereof, and a hydrometric float in the jar; a 'thermometric device comprising a plug fitting within the jar with aliqtud seal contact and having a passage extending therethrough for establishing communication'between the chambers provided in the "jar 'at both sides of the plug, a chamber pro- "vided in said plug *andh'aving spaced passages connected to said communication passage in'said .plug', and a thermometer carriedby saidplug and having its bulb located in saidchamber in vided insaid. plug and having passages so located as'to have communication with the chambers at .both sides of the plug, and a thermometer carried by said plug and having its bulb located in said chamber in said plug, said plug having a circumarnbient channel toprovide'a sealed space encompassing said plug and within the; surrounding wallof the jar, and a data bearing interpolation chart in said channel, said thermometer having its graduated portion in said channel adjacent said chart, said thermometer being of U-shape with the bulb leg thereof extending through an end portion of the plug and into said-chamber in saidplug, and with the graduated leg thereof extending through said end portion of the plug and into said channel.

i. In a tester of the type disclosed which comprises a jar with a suction tip at an end thereof and a suction bulb at the other end-thereof, and a hydrometric float in the jar; a thermometric device comprising a plug fitting within the jar with a liquid seal contact and having a passage extending therethrough for establishing communication between the chambers provided in the jar at both sides of the plug, a chamber provided in said plug and having spaced passages connected to said communication passage in said plug, and a thermometer carried by said plug and having its bulb located in said chamber in said plug, said plug 'having a circumambient channel to provide asealed-space encompassing saidplug and within the surrounding Wall of the jar, and a data bearing interpolation chart in said channel, said thermometer having its graduated portion in said'channel adjacent-said chart, said thermometer being of'U-shape with the bulb leg thereof extending through an end portion of the plug and into said chamber in said plug, and with the'graduated-leg thereof extending through said end portion of the plug and into said channel, the bend-of the thermometer extending outwardly of said end portion of the'plug, and said end portion of the plug having a projecting portionior preventing contactwith said bend by the float. V

'5. In a tester of the type disclosed whichcomprises a jar with a suction tip at an end thereof and a suction bulb at the other end thereof, and afhydrometric float in the jar; a thermometric device comprising a plug fitting within the jar with a'liquid seal contact and having-a passage eXtending-therethrough for establishing communication between the chambers provided in the jar at both sides of the plug,-a chamber provided in sai'dplugand having spaced passages connected to said communication passage in said plug, and a thermometer carried by'said plug and 'havingits bulb located insaid' chamber in said plug, said plug having a circumambient channel to provide a sealed space encompassing said plug and within the surrounding wall of the jar, and a data bearing interpolation chart in said channel, said thermometer having its graduated portion in said channel adjacent said chart, said thermometer being of U-shape with thebulb leg thereof extending through an end portion of the plug and into said chamber in said plug, and with the graduated leg thereof extending through said end portion of the plug and into said channel, the bend of the thermometer extending outwardly of said end portion of the plug, and said end portion of the plug having an extension with a recess therein, and said bend being located within said recess where contact with the bend by the float is prevented.

6. In a tester of the type disclosed which comprises a jar with a suction tip at an end thereof and a suction bulb at the other end thereof, and a hydrometric float in the jar; a thermometric device comprising a plug fitting within the jar with a liquid seal contact and having a passage extending therethrough for establishing communication between the chambers provided in the jar at both sides of the plug, a chamber provided in said plug and having passages which communicate with the chambers at both sides of the plug, and a thermometer carried by the plug and having its bulb located in the chamber in the plug.

'7. In a tester of the type disclosed which comprises a jar with a suction tip at an end thereof and a suction bulb at the other end thereof, and a hydrometric float in the jar; 'a thermometric device comprising a plug fitting within the jar with a liquid seal contact and having a passage extending therethrough for establishing communication between the chambers provided in the jar at both sides of the plug, a chamber provided in said plug and having a passage connected to said communication passage in said plug and a second passage connected to one of the chambers at both sides of the plug, and a thermometer carried by the plug and having its bulb located in the chamber in the plug.

8. In a tester of the type disclosed which comprises a jar with a suction tip at an end thereof and a suction bulb at the other end thereof, and a hydrometric float in the jar; a thermometric device comprising a plug fitting within the jar with a liquid seal contact and having a passage extending therethrough for establishing communication between the chambers provided in the jar at both sides of the plug, a chamber provided in said plug and having passages so located as to have communication with the chambers at both sides of the plug, and a thermometer carried by said plug and having its bulb located in said chamber in said plug, said plug having a groove in a side of the body of the plug between the end portions of the plug, said thermometer having its graduated portion in said groove, said thermometer being of U-shape with the bulb leg thereof extending through an end portion of the plug and into said chamber in said plug, and with the graduated leg thereof extending through said end portion of the plug and into said groove.

9. In a tester of the type disclosed which comprises a jar with a suction tip at an end thereof and a suction bulb at the other end thereof, and a hydrometric float in the jar; a thermometric device comprising a plug fitting within the jar with a liquid seal contact and having a passage extending therethrough for establishing communication between the chambers provided in the jar at both sides of the plug, a chamber provided in said plug and having passages so located as to have communication with the chambers at both sides of the plug, and a thermometer carried by said plug and having its bulb located in said chamber, in said plug, said plug havinga groove in a side. of the body of the plug between the end portions of the plug, said thermometer having its graduated portion in said groove, said thermometer being of U-shape with the bulb leg thereof extending, through an end portion of the plug and into said chamber in said plug, and with the graduated leg thereof extending through said end portion of the plug and into said groove, the bend of the thermometer extending outward- 1y of said end portion of the plug, and said end portion of the plug having a projecting portion for preventing contact with said bend by the float.

10. In a tester of the type disclosed which comprises a jar with a suction tip at an end thereof and a suction bulb at the other end thereprovided in said plug and having passages so lo-.

cated as to have communication with the chambers at both sides of the plug, and a thermometer 7 carried by said plug and having its bulb located I in said chamber in said plug, said plug having a groove in a side of the body of the plug be tween the end portions of the plug, said thermometer having its graduated portion in said groove, said thermometer being of U-shape with the bulb leg thereof extending through an end portion of the plug and into said chamber in said plug, and with the graduated leg thereof extending through said end portion of the plug and into said groove, the bend of the thermometer extending outwardly of said end portion of the plug, and said end portion of the plug having an extension with a recess therein, and said bend being located within said recess where contact with the bend by the float is prevented.

11 In a tester of the type disclosed which comprises a jar with a suction tip at an end thereof and a suction bulb at the other end thereof, and a hydrometric float in the jar; a thermometric device comprising a plug fitting within the jar with a liquid seal contact and having a passage extending therethrough for establishing communication between the chambers provided in the jar at both sides of the plug, there being a chamber provided in said plug and being in communication with said passage in said plug, and a thermometer carried by said plug and having its bulb located in said chamber in said plug.

12. In a tester of the type disclosed which comprises a jar with a suction tip at an end thereof and a suction bulb at the other end thereof, and

a hydrometric float in the jar; a thermometric device comprising a plug fitting within the jar with a liquid seal contact and having a passage extending therethrough for establishing communication between the chambers provided ,in

prises a jar with a suction tip at an end thereof, asuction means at the other end thereof, and a hydrometricfioat in the jar, a plug in the jar for providing jar chambers at both sides of the plug, and means for establishing communication between the chambers in the jar at both sides of the plug, said plug being provided with a thermometer bulb chamber having communication with said communication establishing means, and

14. In a tester of the type disclosed which comprises a jar with a suction tip at an end thereof, a suction means at the other end thereof, anda hydrometricfioat therein; a plug in the jar for providing jar chambers at .both sides of the plug and having a passage communicating with said jar chambers, said plug having therein a thermometer bulb chamber forming a part of said passage, and a thermometer so mounted as having separate means communicating with a 10 to have its bulb located in said bulb chamber.

chamber of the jar, and a thermometer so mounted as to have its bulb located in said bulb chamber.

EMIL A. S'I'ROMBERG. 

